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GB/T 9736-2008 English PDF

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Q: Should I purchase the latest version GB/T 9736-2008?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 9736-2008 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$149.00 · In stock
Delivery: <= 2 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 9736-2008: Chemical reagent -- General method for the determination of acidity and alkalinity
Status: Valid

GB/T 9736: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 9736-2008	149	Add to Cart	2 days	Chemical reagent -- General method for the determination of acidity and alkalinity	Valid
GB/T 9736-1988	199	Add to Cart	2 days	Chemical reagent--General method for the determination of acidity and alkalinity	Obsolete

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Basic data

Standard ID: GB/T 9736-2008 (GB/T9736-2008)
Description (Translated English): Chemical reagent -- General method for the determination of acidity and alkalinity
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G60
Classification of International Standard: 71.040.30
Word Count Estimation: 5,560
Date of Issue: 2008-05-15
Date of Implementation: 2008-11-01
Older Standard (superseded by this standard): GB/T 9736-1988
Quoted Standard: GB/T 601; GB/T 603; GB/T 6682
Adopted Standard: ISO 6353-1-1982, NEQ
Regulation (derived from): National Standard Approval Announcement 2008 No.8 (Total No.121)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the determination of acidity by titration analysis, common alkalinity. This standard applies to water-soluble acid reagent, measurement bases. A water-insoluble water- soluble reagent acid, base after extraction with water, may also be measured in the aqueous phase law. The determination of acidity or alkalinity with the standards, according to the specification values ??and the sample size calculation, the standard titration solution with alkali or acid standard solution titration titration volume of not less than 0. 1mL.

GB/T 9736-2008: Chemical reagent -- General method for the determination of acidity and alkalinity

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Chemical reagent. General method for the determination of acidity and alkalinity ICS 71.040.30 G60 National Standards of People's Republic of China Replacing GB/T 9736-1988 Chemical Reagents General method for measuring acidity and alkalinity (ISO 6353-1. 1982, Reagentsforchemicalanalysis- Part 1. Generaltestmethods, NEQ) Posted 2008-05-15 2008-11-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard and ISO 6353-1. 1982 "Chemical analysis of reagent --- Part 1. General test method" non-equivalent. This standard replaces GB/T "Chemicals acidity and alkalinity determination of the general method," 9736-1988, compared with the GB/T 9736-1988 The main changes are as follows. --- Improve the water-soluble liquid sample measuring acidity and alkalinity (1988 version 6.1, this version 6.1.1); --- Modify acidity, alkalinity is calculated and expressed in units of the way (1988 edition, Chapter 7, this edition 6.1.2,6.2.2). The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee Chemistry Chemicals Branch (SAC/TC63/SC3) centralized. This standard was drafted. Guangdong Guanghua Chemical Factory Co., Ltd. The main drafters. Zhang Zhibin, body and even the king. This standard was first published in 1988. Chemical Reagents General method for measuring acidity and alkalinity

1 Scope

This standard specifies the general method for the determination of acidity, alkalinity by titration analysis. This standard applies to acid, alkali reagent water solubility. Water-insoluble reagent water soluble acids, bases, after water extraction, also Law is available in the aqueous phase measurement. The determination of acidity or alkalinity use this standard, according to specifications and sample value calculation, the use of alkali or acid standard titration solution standard titration solution drop A given volume of not less than 0.1mL.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. Preparation of GB/T 601 chemical reagent standard titration solution GB/T 603 chemical reagent test method Preparations of articles (GB/T 603-2002, ISO 6353-1 with. 1982, NEQ) GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD)

3 PRINCIPLE OF THE METHOD

Samples were subjected to appropriate treatment, the presence therein of acid or base is transferred to the water or a mixture of water and an organic solvent, in a suitable indicator Under the presence of a predetermined concentration of alkali or acid standard titration solution titration standard solution titration, you can measure the acidity or alkalinity of the sample.

4 Reagents

Unless otherwise specified in this standard, the standard titration solution, formulations and products used, according to GB/T 601, GB/T 603 system requirements Prepare, test water should be consistent with GB/T 6682 in the three water specifications. Titration of the base application of sodium hydroxide standard titration solution preparation, concentration [Ba (OH-)] shall not be less than 0.01mol/L; titration used in the preparation of the acid standard volumetric hydrochloric acid or sulfuric acid solution was applied, the concentration of [Ba (H +)] shall not be less In 0.01mol/L.

5 Determination

5.1 acidity or alkalinity of aqueous samples 5.1.1 measuring step Take 100mL carbon dioxide-free water, adding a predetermined indicator, with a base or an acid standard titration solution specified in Standard Solution And, after reaching the end point, the end point indicator color should be maintained for at least 30s. Predetermined amount of the sample (liquid sample added is not greater than 30mL), alkali or acid standard titration solution titrated with standard volumetric solution prescribed, at the finish, ending color indicator should be at least maintained 30s. 5.1.2 Calculation Results Aqueous samples acidity (in H +) or alkalinity (OH- dollars) molality Chou, values \u200b\u200bto millimoles per gram (mmol/g) table Shows, according to equation (1). ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 9736-2008_English be delivered?

Answer: Upon your order, we will start to translate GB/T 9736-2008_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 2 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 9736-2008_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 9736-2008_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 9736-2008?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 9736-2008 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.